.card-notebook {
    background-color: #f9f7e8;
    font-family: "Times New Roman", "Segoe UI", sans-serif;
    border: 0.0625rem solid #e0e0e0;
    border-radius: 0.5rem;
    padding: 1.5rem;
    position: relative;
    line-height: 1.6rem;
  }
  
  .card-notebook p {
    margin: 0;
    padding-bottom: 0.4rem;
    border-bottom: 0.0625rem solid #e5e5e5;
    margin-bottom: 0.6rem;
  }
  
  .card-notebook::before {
    content: "";
    position: absolute;
    left: 1rem;
    top: 0;
    bottom: 0;
    width: 0.0625rem;
    background-color: #ff9999;
    opacity: 0.7;
    z-index: 1;
  }
  
  .card-notebook img {
    max-width: 90%;
    height: auto;
    padding: 0.5rem;
    background-color: white;
    border: 0.0625rem solid #e0e0e0;
    border-radius: 0.25rem;
    margin: 1rem auto;
    display: block;
  }
  
  .card-notebook h1,
  .card-notebook h2,
  .card-notebook h3,
  .card-notebook h4,
  .card-notebook h5,
  .card-notebook h6 {
    color: #ff6b6b;
    font-weight: 600;
    margin-top: 0;
    margin-bottom: 1rem;
    padding-bottom: 0.3rem;
    border-bottom: 0.125rem dotted #ccc;
  }
  
  .card-notebook h1 {
    font-size: 3.125rem;
    text-align: center;
  }
  
  .card-notebook h2 {
    font-size: 1.5rem;
  }
  
  .card-notebook h3 {
    font-size: 1.2rem;
  }
  
  /* 列表样式 */
  .card-notebook ul,
  .card-notebook ol {
    padding-left: 1.5rem;
    list-style-type: none;
  }
  
  .card-notebook ul li,
  .card-notebook ol li {
    position: relative;
    margin-bottom: 0.5rem;
    background-color: transparent;
  }
  
  .card-notebook ul li {
    border: 0.0625rem solid #ddd;
    padding: 0.2rem 0.4rem;
    border-radius: 0.1875rem;
  }
  
  .card-notebook ul li::before {
    content: "•";
    color: #ff9999 ;
    font-weight: bold;
    position: absolute;
    left: -1.2rem;
    font-size: 2rem;
  }
  
  .card-notebook ol li {
    padding-bottom: 0.3125rem;
    padding-left: 0.2rem;
    border-bottom: 0.125rem dotted #ccc;
    font-size: 1.5625rem;
    margin-bottom: 1rem;
    position: relative;
  }
  
  .card-notebook ol li::before {
    content: attr(data-index); /* 将使用data-index属性值 */
    background-color: transparent;
    color: #3a87ad;
    font-weight: bold;
    font-size: 0.8rem;
    border-radius: 50%;
    width: 1.2rem;
    height: 1.2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    left: -1.5rem;
    border: 0.125rem solid #3a87ad;
  }
  
  /* 引用块样式 */
  .card-notebook blockquote {
    border-left: 0.1875rem solid #ff9999;
    padding-left: 1rem;
    margin-left: 1rem;
    font-style: italic;
    color: #666;
    background-color: rgba(255, 153, 153, 0.05);
  }
  
  /* 代码样式 */
  .card-notebook code {
    background-color: #f5f5f5;
    padding: 0.2rem 0.4rem;
    border-radius: 0.1875rem;
    font-family: monospace;
    font-size: 0.9rem;
    color: #d63384;
  }
  
  .card-notebook pre {
    background-color: #f8f8f8;
    padding: 1rem;
    border-radius: 0.3125rem;
    border-left: 0.1875rem solid #5f9ea0;
    overflow-x: auto;
  }
  
  /* 表格样式 */
  .card-notebook table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    border: 0.0625rem solid #e0e0e0;
    background-color: #fff;
    box-shadow: 0 0.125rem 0.3125rem rgba(0, 0, 0, 0.1);
    border-radius: 0.25rem;
    overflow: hidden;
    font-family: "Times New Roman", "PingFang SC", "Hiragino Sans GB", "SimSun", "Segoe UI", sans-serif;
    line-height: 1.4;
    font-size: 1.5rem;
  }
  
  .card-notebook table th,
  .card-notebook table td {
    padding: 0.5rem 0.75rem;
    border: 0.0625rem solid #e5e5e5;
    text-align: left;
  }
  
  .card-notebook table th {
    background-color: rgba(240, 173, 78, 0.1);
    color: #f0ad4e;
    font-weight: 600;
    border-bottom: 0.125rem solid #f0ad4e;
  }
  
  .card-notebook table tr:nth-child(even) {
    background-color: rgba(249, 247, 232, 0.5);
  }
  
  .card-notebook table tr:hover {
    background-color: rgba(255, 153, 153, 0.05);
  }